同相供电系统改进型综合补偿电流检测方法研究  

Research on Improved Comprehensive Compensation Current Detection Method by Co-phase Power Supply System

作　　者：王庆贤[1] 左晓薇[1] 李少帅[1] 马泳娟[1] 王宇峰[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《铁道学报》2013年第2期26-31,共6页Journal of the China Railway Society

摘　　要：同相供电技术能解决三相负载不平衡问题,取消电分相环节,有利于未来重载、高速铁路的发展。将YN,d11变压器和综合潮流控制器相结合构成同相供电系统。对传统型综合补偿电流检测方法进行改进并应用于同相供电系统中。仿真结果表明:改进型综合补偿电流检测方法可以实时、准确地检测综合补偿电流。相比传统型综合补偿电流检测方法,在动态响应速度和稳态准确性上都有一定的改善。Co-phase power supply technology can solve the problem of three-phase load power imbalance and cancel use of the neutral section insulator, thus being helpful to future development of high-speed railways and heavy-haul railways. The co-phase power supply system was designed by combining the YN,dll transformer and the integrated power flow controller. The traditional comprehensive compensation current detection meth- od was improved theoretically and was applied in the co-phase power supply system. The simulation results prove as follows： The improved current detection method can test comprehensive compensation currents accu- rately and on real-time basis~ compared with the traditional comprehensive compensation current detection method, the dynamic response velocity and steady state accuracy are improved to a certain extent.

关 键 词：同相供电系统 综合潮流控制器 综合补偿电流检测 有功电流分离法 无锁相环 

分 类 号：TM922.3[电气工程—电力电子与电力传动]